[dap930]

Bobby,

The oil pressure warning light sensor is located on the top of the oil breather cover at the forward center of the engine below the CIS metering housing. The switch has a history of leaking through the housing which allows oil to run down under the fan shroud and down the outer engine case where the cylinders mate up to the block. The engine oil thermostat is located next to it which could also be leaking oil past the cartridge O-rings to allow oil to run under the fan shroud. This area is known as "the triangle of death". It is a pain to get to this area without removing the CIS metering housing.